package org.common4j2ee.stock.web.security;

import java.io.IOException;  
import javax.servlet.Filter;  
import javax.servlet.FilterChain;  
import javax.servlet.FilterConfig;  
import javax.servlet.ServletException;  
import javax.servlet.ServletRequest;  
import javax.servlet.ServletResponse;  
import org.springframework.security.access.SecurityMetadataSource;  
import org.springframework.security.access.intercept.AbstractSecurityInterceptor;  
import org.springframework.security.access.intercept.InterceptorStatusToken;  
import org.springframework.security.web.FilterInvocation;  
import org.springframework.security.web.access.intercept.FilterInvocationSecurityMetadataSource;  
public class FilterSecurityInterceptor extends AbstractSecurityInterceptor
		implements Filter {

	private FilterInvocationSecurityMetadataSource securityMetadataSource;
	 
	public void doFilter(ServletRequest request, ServletResponse response,
			FilterChain chain) throws IOException, ServletException {
		FilterInvocation fi = new FilterInvocation(request, response, chain);
		invoke(fi);
	} 

	public FilterInvocationSecurityMetadataSource getSecurityMetadataSource() {
		return this.securityMetadataSource;
	} 

	public Class<? extends Object> getSecureObjectClass() {
		return FilterInvocation.class;
	}

	public void invoke(FilterInvocation fi) throws IOException,
			ServletException {
		InterceptorStatusToken token = super.beforeInvocation(fi);
		try {
			fi.getChain().doFilter(fi.getRequest(), fi.getResponse());
		} finally {
			super.afterInvocation(token, null);
		}
	}
	
	@Override
	public SecurityMetadataSource obtainSecurityMetadataSource() {
		return this.securityMetadataSource;
	}

	public void setSecurityMetadataSource(
			FilterInvocationSecurityMetadataSource securityMetadataSource) {
		this.securityMetadataSource = securityMetadataSource;
	}

	public void destroy() {
		
	}

	public void init(FilterConfig filterconfig) throws ServletException {
	}

	 
}

